Patent US1687281A successfully refreshed from Google Patents.
US1687281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring production
Assignee: ELECTRECORDER Corp
•
Filing: 1926-03-17
•
Granted: 1928-10-09
•
Expires: 1946-03-17
Abstract
No abstract record available.
Inventors
- 👤 Peter A Cooney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:02
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/08; G07C3/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-10-09 | 1932-04-09 | 1932-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-10-09 | 1936-04-09 | 1936-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-10-09 | 1940-04-09 | 1940-10-09 | $7700.00 | Window Closed / Lapsed |